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Wang J, Yu Y, Gao Y, Wan T, Cong Z, Li Z, Zhou Y, Wang X, Feng L, Han Y, Zhang J, Qu Y, Guo X. The Anesthesiologists' Perception of Malignant Hyperthermia and Availability of Dantrolene in China: A Cross-Sectional Survey. Risk Manag Healthc Policy 2024; 17:763-773. [PMID: 38562250 PMCID: PMC10984096 DOI: 10.2147/rmhp.s454895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 03/19/2024] [Indexed: 04/04/2024] Open
Abstract
Background Malignant hyperthermia (MH) is a hypermetabolic syndrome with high mortality rates. Early detection and prompt intravenous administration of dantrolene are crucial for effective management of MH. However, there is currently a lack of comprehensive nationwide surveys on the availability of dantrolene and anesthesiologists' understanding of MH in China. Methods A nationwide survey was conducted between January 2022 and June 2022. Online questionnaires on the cognition of MH among anesthesiologists in China were sent through social platforms to anesthesiologists in mainland China. Data regarding participants' perception of MH-related knowledge, availability of domestic dantrolene, and reported MH cases were collected in this study. Results Responses were collected from a total of 11,354 anesthesiologists representing 31 provinces across the Chinese mainland. Among the 11 scoring questions, the highest accuracy rates were observed for the question regarding therapeutic drugs for MH (99.3%) and the characteristics of MH (98.0%). Conversely, the question pertaining to the earliest clinical signs of MH had the lowest accuracy rate (23.5%). Significant variations were observed in the scores among different professional titles (P=0.003), academic degree (P<0.001), hospital classification (P<0.001), and urban hierarchy (P<0.001). Of the respondents, 919 (8.1%) anesthesiologists reported dantrolene availability in their hospitals, and 631 (5.6%) indicated unclear. A total of 136 hospitals in this survey reported at least one previous case of MH. Conclusion Mainland China faces challenges such as insufficient experience in diagnosing and treating MH, as well as difficulty in obtaining dantrolene. To improve the public awareness of MH, it is imperative to establish and promote a refined MH training system. Additionally, a streamlined and rapid dantrolene linkage emergency system should be implemented to ensure prompt access to the drug.
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Affiliation(s)
- Jiechu Wang
- Department of Anesthesiology, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
- Beijing Center of Quality Control and Improvement on Clinical Anesthesia, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
- Anesthesia and Perioperative Medicine Branch of China International Exchange and Promotive Association for Medical and Health Care (CPAM), Beijing, 100191, People’s Republic of China
| | - Yao Yu
- Department of Anesthesiology, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
| | - Ya Gao
- Department of Anesthesiology, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
- Beijing Center of Quality Control and Improvement on Clinical Anesthesia, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
- Anesthesia and Perioperative Medicine Branch of China International Exchange and Promotive Association for Medical and Health Care (CPAM), Beijing, 100191, People’s Republic of China
| | - Tingting Wan
- Department of Anesthesiology, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
- Beijing Center of Quality Control and Improvement on Clinical Anesthesia, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
- Anesthesia and Perioperative Medicine Branch of China International Exchange and Promotive Association for Medical and Health Care (CPAM), Beijing, 100191, People’s Republic of China
| | - Zhukai Cong
- Department of Anesthesiology, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
- Beijing Center of Quality Control and Improvement on Clinical Anesthesia, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
- Anesthesia and Perioperative Medicine Branch of China International Exchange and Promotive Association for Medical and Health Care (CPAM), Beijing, 100191, People’s Republic of China
| | - Zhengqian Li
- Department of Anesthesiology, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
- Beijing Center of Quality Control and Improvement on Clinical Anesthesia, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
- Anesthesia and Perioperative Medicine Branch of China International Exchange and Promotive Association for Medical and Health Care (CPAM), Beijing, 100191, People’s Republic of China
| | - Yang Zhou
- Department of Anesthesiology, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
- Beijing Center of Quality Control and Improvement on Clinical Anesthesia, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
- Anesthesia and Perioperative Medicine Branch of China International Exchange and Promotive Association for Medical and Health Care (CPAM), Beijing, 100191, People’s Republic of China
| | - Xiaoxiao Wang
- Research Center for Clinical Epidemiology, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
| | - Luyang Feng
- Department of Anesthesiology, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
- Beijing Center of Quality Control and Improvement on Clinical Anesthesia, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
- Anesthesia and Perioperative Medicine Branch of China International Exchange and Promotive Association for Medical and Health Care (CPAM), Beijing, 100191, People’s Republic of China
| | - Yongzheng Han
- Department of Anesthesiology, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
- Beijing Center of Quality Control and Improvement on Clinical Anesthesia, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
- Anesthesia and Perioperative Medicine Branch of China International Exchange and Promotive Association for Medical and Health Care (CPAM), Beijing, 100191, People’s Republic of China
| | - Jing Zhang
- Department of Anesthesiology, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
- Beijing Center of Quality Control and Improvement on Clinical Anesthesia, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
- Anesthesia and Perioperative Medicine Branch of China International Exchange and Promotive Association for Medical and Health Care (CPAM), Beijing, 100191, People’s Republic of China
| | - Yinyin Qu
- Department of Anesthesiology, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
- Beijing Center of Quality Control and Improvement on Clinical Anesthesia, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
- Anesthesia and Perioperative Medicine Branch of China International Exchange and Promotive Association for Medical and Health Care (CPAM), Beijing, 100191, People’s Republic of China
| | - Xiangyang Guo
- Department of Anesthesiology, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
- Beijing Center of Quality Control and Improvement on Clinical Anesthesia, Peking University Third Hospital, Beijing, 100191, People’s Republic of China
- Anesthesia and Perioperative Medicine Branch of China International Exchange and Promotive Association for Medical and Health Care (CPAM), Beijing, 100191, People’s Republic of China
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Cong Z, Wan T, Wang J, Feng L, Cao C, Li Z, Wang X, Han Y, Zhou Y, Gao Y, Zhang J, Qu Y, Guo X. Epidemiological and clinical features of malignant hyperthermia: A scoping review. Clin Genet 2024; 105:233-242. [PMID: 38148504 DOI: 10.1111/cge.14475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/22/2023] [Accepted: 12/07/2023] [Indexed: 12/28/2023]
Abstract
Malignant hyperthermia (MH) is a potentially fatal inherited pharmacogenetic disorder related to pathogenic variants in the RYR1, CACNA1S, or STAC3 genes. Early recognition of the occurrence of MH and prompt medical treatment are indispensable to ensure a positive outcome. The purpose of this study was to provide valuable information for the early identification of MH by summarizing epidemiological and clinical features of MH. This scoping review followed the methodological framework recommended by Arksey and O'Malley. PubMed, Embase, and Web of science databases were searched for studies that evaluated the epidemical and clinical characteristics of MH. A total of 37 studies were included in this review, of which 26 were related to epidemiology and 24 were associated with clinical characteristics. The morbidity of MH varied from 0.18 per 100 000 to 3.9 per 100 000. The mortality was within the range of 0%-18.2%. Identified risk factors included sex, age, disorders associated with MH, and others. The most frequent initial clinical signs included hyperthermia, sinus tachycardia, and hypercarbia. The occurrence of certain signs, such as hypercapnia, delayed first temperature measurement, and peak temperature were associated with poor outcomes. The epidemiological and clinical features of MH varied considerably and some risk factors and typical clinical signs were identified. The main limitation of this review is that the treatment and management strategies were not assessed sufficiently due to limited information.
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Affiliation(s)
- Zhukai Cong
- Department of Anesthesiology, Peking University Third Hospital, Beijing, China
- Beijing Center of Quality Control and lmprovement on Clinical Anesthesia, Beijing, China
| | - Tingting Wan
- Department of Anesthesiology, Peking University Third Hospital, Beijing, China
- Beijing Center of Quality Control and lmprovement on Clinical Anesthesia, Beijing, China
| | - Jiechu Wang
- Department of Anesthesiology, Peking University Third Hospital, Beijing, China
- Beijing Center of Quality Control and lmprovement on Clinical Anesthesia, Beijing, China
| | - Luyang Feng
- Department of Anesthesiology, Peking University Third Hospital, Beijing, China
- Beijing Center of Quality Control and lmprovement on Clinical Anesthesia, Beijing, China
| | - Cathy Cao
- Department of Anesthesiology, MedStar Washington Hospital Center, Washington, DC, USA
| | - Zhengqian Li
- Department of Anesthesiology, Peking University Third Hospital, Beijing, China
- Beijing Center of Quality Control and lmprovement on Clinical Anesthesia, Beijing, China
| | - Xiaoxiao Wang
- Research Center for Clinical Epidemiology, Peking University Third Hospital, Beijing, China
| | - Yongzheng Han
- Department of Anesthesiology, Peking University Third Hospital, Beijing, China
- Beijing Center of Quality Control and lmprovement on Clinical Anesthesia, Beijing, China
| | - Yang Zhou
- Department of Anesthesiology, Peking University Third Hospital, Beijing, China
- Beijing Center of Quality Control and lmprovement on Clinical Anesthesia, Beijing, China
| | - Ya Gao
- Department of Anesthesiology, Peking University Third Hospital, Beijing, China
- Beijing Center of Quality Control and lmprovement on Clinical Anesthesia, Beijing, China
| | - Jing Zhang
- Department of Anesthesiology, Peking University Third Hospital, Beijing, China
- Beijing Center of Quality Control and lmprovement on Clinical Anesthesia, Beijing, China
| | - Yinyin Qu
- Department of Anesthesiology, Peking University Third Hospital, Beijing, China
- Beijing Center of Quality Control and lmprovement on Clinical Anesthesia, Beijing, China
| | - Xiangyang Guo
- Department of Anesthesiology, Peking University Third Hospital, Beijing, China
- Beijing Center of Quality Control and lmprovement on Clinical Anesthesia, Beijing, China
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Wan T, Wang Y, He K, Zhu S. Microbial sensing in the intestine. Protein Cell 2023; 14:824-860. [PMID: 37191444 PMCID: PMC10636641 DOI: 10.1093/procel/pwad028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 05/04/2023] [Indexed: 05/17/2023] Open
Abstract
The gut microbiota plays a key role in host health and disease, particularly through their interactions with the immune system. Intestinal homeostasis is dependent on the symbiotic relationships between the host and the diverse gut microbiota, which is influenced by the highly co-evolved immune-microbiota interactions. The first step of the interaction between the host and the gut microbiota is the sensing of the gut microbes by the host immune system. In this review, we describe the cells of the host immune system and the proteins that sense the components and metabolites of the gut microbes. We further highlight the essential roles of pattern recognition receptors (PRRs), the G protein-coupled receptors (GPCRs), aryl hydrocarbon receptor (AHR) and the nuclear receptors expressed in the intestinal epithelial cells (IECs) and the intestine-resident immune cells. We also discuss the mechanisms by which the disruption of microbial sensing because of genetic or environmental factors causes human diseases such as the inflammatory bowel disease (IBD).
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Affiliation(s)
- Tingting Wan
- Division of Life Sciences and Medicine, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Institute of Immunology, School of Basic Medical Sciences, University of Science and Technology of China, Hefei 230027, China
| | - Yalong Wang
- Division of Life Sciences and Medicine, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Institute of Immunology, School of Basic Medical Sciences, University of Science and Technology of China, Hefei 230027, China
| | - Kaixin He
- Division of Life Sciences and Medicine, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Institute of Immunology, School of Basic Medical Sciences, University of Science and Technology of China, Hefei 230027, China
| | - Shu Zhu
- Division of Life Sciences and Medicine, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Institute of Immunology, School of Basic Medical Sciences, University of Science and Technology of China, Hefei 230027, China
- Department of Digestive Disease, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei 230001, China
- Institute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei 230601, China
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Wan T, Gao Y, Wu C. Ultrasound-Assisted Management for Tracheal Intubation in the Patient with Tracheal Diverticulum. Case Rep Anesthesiol 2023; 2023:5586490. [PMID: 37767048 PMCID: PMC10522423 DOI: 10.1155/2023/5586490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 08/10/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
Tracheal diverticulum (TD) is a rare disease. Due to the worldwide pandemic of COVID-19, the increase of routine preoperative chest CT examination has led to a higher detection rate of TD. Although TD is very rare, it is one of the reasons for difficult intubation and difficult ventilation. Improper treatment can cause severe airway emergencies such as diverticulum tearing, tracheal rupture, and subcutaneous or mediastinal emphysema. Unfortunately, there are few studies on TD, especially in perioperative airway and anesthesia management. This paper reports a case of TD found by preoperative chest CT examination who required tracheal intubation under general anesthesia. For the first time, ultrasound was used to confirm the position of tracheal tube and TD, and good results were achieved. This attempt provides a new idea and method for airway management in patients with TD.
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Affiliation(s)
- Tingting Wan
- Department of Anesthesiology, Peking University Third Hospital, Beijing 100191, China
| | - Ya Gao
- Department of Anesthesiology, Peking University Third Hospital, Beijing 100191, China
| | - Changyi Wu
- Department of Anesthesiology, Peking University Third Hospital, Beijing 100191, China
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He Q, Gong G, Wan T, Hu H, Yu P. An integrated transcriptomic and metabolic phenotype analysis to uncover the metabolic characteristics of a genetically engineered Candida utilis strain expressing δ-zein gene. Front Microbiol 2023; 14:1241462. [PMID: 37744922 PMCID: PMC10513430 DOI: 10.3389/fmicb.2023.1241462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 08/21/2023] [Indexed: 09/26/2023] Open
Abstract
Introduction Candida utilis (C. utilis) has been extensively utilized as human food or animal feed additives. With its ability to support heterologous gene expression, C. utilis proves to be a valuable platform for the synthesis of proteins and metabolites that possess both high nutritional and economic value. However, there remains a dearth of research focused on the characteristics of C. utilis through genomic, transcriptomic and metabolic approaches. Methods With the aim of unraveling the molecular mechanism and genetic basis governing the biological process of C. utilis, we embarked on a de novo sequencing endeavor to acquire comprehensive sequence data. In addition, an integrated transcriptomic and metabolic phenotype analysis was performed to compare the wild-type C. utilis (WT) with a genetically engineered strain of C. utilis that harbors the heterologous δ-zein gene (RCT). Results δ-zein is a protein rich in methionine found in the endosperm of maize. The integrated analysis of transcriptomic and metabolic phenotypes uncovered significant metabolic diversity between the WT and RCT C. utilis. A total of 252 differentially expressed genes were identified, primarily associated with ribosome function, peroxisome activity, arginine and proline metabolism, carbon metabolism, and fatty acid degradation. In the experimental setup using PM1, PM2, and PM4 plates, a total of 284 growth conditions were tested. A comparison between the WT and RCT C. utilis demonstrated significant increases in the utilization of certain carbon source substrates by RCT. Gelatin and glycogen were found to be significantly utilized to a greater extent by RCT compared to WT. Additionally, in terms of sulfur source substrates, RCT exhibited significantly increased utilization of O-Phospho-L-Tyrosine and L-Methionine Sulfone when compared to WT. Discussion The introduction of δ-zein gene into C. utilis may lead to significant changes in the metabolic substrates and metabolic pathways, but does not weaken the activity of the strain. Our study provides new insights into the transcriptomic and metabolic characteristics of the genetically engineered C. utilis strain harboring δ-zein gene, which has the potential to advance the utilization of C. utilis as an efficient protein feed in agricultural applications.
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Affiliation(s)
- Qiburi He
- Key Laboratory of Industrial Fermentation Microbiology of Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
- Inner Mongolia Academy of Agricultural and Animal Husbandry Science, Hohhot, China
| | - Gaowa Gong
- Inner Mongolia Academy of Agricultural and Animal Husbandry Science, Hohhot, China
| | - Tingting Wan
- Key Laboratory of Industrial Fermentation Microbiology of Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - He Hu
- Inner Mongolia Academy of Agricultural and Animal Husbandry Science, Hohhot, China
| | - Peng Yu
- Key Laboratory of Industrial Fermentation Microbiology of Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
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Yang X, Li X, Bu S, Wan T, Xiang D, Ye L, Sun Z, Wang K, Zhu M, Li P. Bismuth Incorporation in Palladium Hydride for the Electrocatalytic Ethanol Oxidation with Enhanced CO Tolerance. ACS Appl Mater Interfaces 2023; 15:41560-41568. [PMID: 37608619 DOI: 10.1021/acsami.3c08885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
Introducing nonmetal and oxophilic metal into palladium (Pd)-based catalysts is beneficial for boosting electrocatalysis, especially regarding the improvement of mass activity (MA) and CO tolerance. Herein, the stable bismuth-doped palladium hydride (Bi/PdH) networks have been successfully fabricated through a simple one-step method. The intercalation of interstitial H atoms expands the lattice of Pd, and the doping of oxophilic metal Bi restrains the adsorption of poisonous intermediates on the surface of Pd, thereby improving the activity and durability of the as-prepared catalysts in the ethanol oxidation reaction (EOR). The obtained Bi/PdH networks manifest a remarkable MA of 8.51 A·mgPd-1, which is 11.18 times higher than that of commercial Pd/C (0.76 A·mgPd-1). The CO-stripping analysis results indicate that Bi doping can significantly prohibit CO adsorption on the surface of the Bi/PdH networks. The density functional theory (DFT) calculations also reveal that Bi doping enhances the OH* adsorption on the catalyst surface and mitigates the interaction between Pd and CO* intermediates, providing deeper insights into the origin of the enhanced EOR activity and CO tolerance. This work describes an impactful path for producing high-performance and durable PdH-based nanocatalysts.
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Affiliation(s)
- Xianlong Yang
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, China
| | - Xinghao Li
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, China
| | - Shu Bu
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, China
| | - Tingting Wan
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, China
| | - Dong Xiang
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, China
| | - Lina Ye
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, China
| | - Zhenjie Sun
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, China
| | - Kun Wang
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, China
| | - Manzhou Zhu
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, China
| | - Peng Li
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, China
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He K, Wan T, Wang D, Hu J, Zhou T, Tao W, Wei Z, Lu Q, Zhou R, Tian Z, Flavell RA, Zhu S. Gasdermin D licenses MHCII induction to maintain food tolerance in small intestine. Cell 2023; 186:3033-3048.e20. [PMID: 37327784 DOI: 10.1016/j.cell.2023.05.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 03/03/2023] [Accepted: 05/17/2023] [Indexed: 06/18/2023]
Abstract
The intestinal epithelial cells (IECs) constitute the primary barrier between host cells and numerous foreign antigens; it is unclear how IECs induce the protective immunity against pathogens while maintaining the immune tolerance to food. Here, we found IECs accumulate a less recognized 13-kD N-terminal fragment of GSDMD that is cleaved by caspase-3/7 in response to dietary antigens. Unlike the 30-kD GSDMD cleavage fragment that executes pyroptosis, the IEC-accumulated GSDMD cleavage fragment translocates to the nucleus and induces the transcription of CIITA and MHCII molecules, which in turn induces the Tr1 cells in upper small intestine. Mice treated with a caspase-3/7 inhibitor, mice with GSDMD mutation resistant to caspase-3/7 cleavage, mice with MHCII deficiency in IECs, and mice with Tr1 deficiency all displayed a disrupted food tolerance phenotype. Our study supports that differential cleavage of GSDMD can be understood as a regulatory hub controlling immunity versus tolerance in the small intestine.
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Affiliation(s)
- Kaixin He
- Department of Digestive Disease, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China; Institute of Immunology and the CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Tingting Wan
- Institute of Immunology and the CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Decai Wang
- Institute of Immunology and the CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Ji Hu
- Department of Digestive Disease, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China; Institute of Immunology and the CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Tingyue Zhou
- Institute of Immunology and the CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Wanyin Tao
- Institute of Immunology and the CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China
| | - Zheng Wei
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Qiao Lu
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Rongbin Zhou
- Institute of Immunology and the CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China; Institute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei 230601, China
| | - Zhigang Tian
- Institute of Immunology and the CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China; Institute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei 230601, China
| | - Richard A Flavell
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA; Howard Hughes Medical Institute, Yale University School of Medicine, New Haven, CT 06520, USA.
| | - Shu Zhu
- Department of Digestive Disease, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China; Institute of Immunology and the CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China; Institute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei 230601, China; School of Data Science, University of Science and Technology of China, Hefei 230026, China.
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Zhang J, Wang M, Wan T, Shi H, Lv A, Xiao W, Jiao S. Novel (Pt-O x )-(Co-O y ) Nonbonding Active Structures on Defective Carbon from Oxygen-Rich Coal Tar Pitch for Efficient HER and ORR. Adv Mater 2022; 34:e2206960. [PMID: 36111463 DOI: 10.1002/adma.202206960] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 09/02/2022] [Indexed: 06/15/2023]
Abstract
Atomic-scale utilization and coordination structure of Pt electrocatalyst is extremely crucial to decrease loading mass and maximize activity for hydrogen evolution reactions (HERs) and oxygen reduction reactions (ORRs). A novel atomic-scale (Pt-Ox )-(Co-Oy ) nonbonding active structure is designed and constructed by anchoring Pt single atoms and Co atomic clusters on the defective carbon derived from oxygen-rich coal tar pitch (CTP). The Pt loading mass is extremely low and only 0.56 wt%. A new nonbonding interaction phenomenon between Pt-Ox and Co-Oy is found and confirmed based on X-ray absorption spectroscopy and density functional theory calculations. Based on the (Pt-Ox )-(Co-Oy ) nonbonding active structure, surface chemical field coupling with electrocatalysis for the HER and ORR is confirmed. It is found that the (Pt-Ox )-(Co-Oy ) nonbonding active structure exhibits high mass activities of 64.4 A cm-2 mgPt -1 (at an overpotential of 100 mV) and 7.2 A cm-2 mgPt -1 (at 0.8 V vs reversible hydrogen electrode) for the HER and ORR, respectively. The values are 6.5 and 11.6 times as much as those of commercial 20% Pt/C. The work provides innovative insight to design and understand efficient active sites of atomic-scale Pt on oxygen-rich CTP-derived carbon supports for electrocatalysis.
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Affiliation(s)
- Jintao Zhang
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100083, P. R. China
| | - Mingyong Wang
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100083, P. R. China
- Beijing Key Laboratory of Green Recovery and Extraction of Rare and Precious Metals, University of Science and Technology Beijing, Beijing, 100083, P. R. China
| | - Tingting Wan
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
| | - Haotian Shi
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100083, P. R. China
| | - Aijing Lv
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100083, P. R. China
| | - Wei Xiao
- College of Chemistry and Molecular Sciences, Hubei Key Laboratory of Electrochemical Power Sources, Wuhan University, Wuhan, 430072, P. R. China
| | - Shuqiang Jiao
- State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, 100083, P. R. China
- Beijing Key Laboratory of Green Recovery and Extraction of Rare and Precious Metals, University of Science and Technology Beijing, Beijing, 100083, P. R. China
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9
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Wan T, Wang Y, Wang C, Wang H, Li X, Li Y. Overexpression of TRIM32 promotes pancreatic β-cell autophagic cell death through Akt/mTOR pathway under high glucose conditions. Cell Biol Int 2022; 46:2095-2106. [PMID: 36040726 DOI: 10.1002/cbin.11897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 07/25/2022] [Accepted: 08/10/2022] [Indexed: 11/09/2022]
Abstract
Type 2 diabetes mellitus (T2DM) is a growing worldwide epidemic and is characterized by progressive pancreatic β-cell dysfunction and insulin resistance. Tripartite motif protein 32 (TRIM32) belongs to the TRIM family protein and has been shown to be involve in insulin resistance in skeletal muscle and the liver. However, the effect of TRIM32 on pancreatic β-cell dysfunction and its mechanism remains unknown. In the current study, we found that serum TRIM32 concentrations of T2DM in patients were significantly elevated compared to those in healthy controls, which indicated that TRIM32 might be used as a diagnostic biomarker in T2DM patients. In INS-1 cells, exposure to high glucose (HG) conditions caused a significant elevation in TRIM32 expression and TRIM32 was located in the nucleus. Overexpression of TRIM32 in INS-1 cells exacerbated the effects of HG-induced autophagy and impaired insulin secretion. In contrast, the silencing of TRIM32 produced the opposite effect. Furthermore, TRIM32 overexpression decreased the phosphorylation levels of Akt and mTOR under HG conditions. However, the activation of Akt/mTOR by MHY1485 reversed the effects of TRIM32 on HG-treated INS-1 cells. Collectively, the present results suggested that TRIM32 participates in the development of T2DM by modulating autophagic cell death and insulin secretion, which might occur through the Akt/mTOR pathway. Thus, TRIM32 might be a promising target in T2DM therapy.
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Affiliation(s)
- Tingting Wan
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China.,The Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin, Heilongjiang, China
| | - Yidan Wang
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China.,The Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin, Heilongjiang, China
| | - Chunxu Wang
- The Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin, Heilongjiang, China.,Department of Hematology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Hongjie Wang
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Xiudan Li
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China.,The Key Laboratory of Myocardial Ischemia, Ministry of Education, Harbin, Heilongjiang, China
| | - Yanbo Li
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
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10
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Zhang J, Wan T, Yang X, Li Q, Xiang D, Yuan X, Sun Z, Li P, Zhu M. Ternary PdCoP nanoparticles with nanopore structures: synergic boosting of electrocatalytic activity for ethanol oxidation. Chem Commun (Camb) 2022; 58:10376-10379. [PMID: 36017783 DOI: 10.1039/d2cc03663k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PdCoP nanoparticles (PdCoP NPs) with nanopore structures were synthesized by a facile one-pot solvothermal approach. Due to their unique geometric structures and the electronic and synergistic effects among multiple components, the optimized PdCoP NPs (PdCoP-NPs-1) show superior mass activity (5.97 A mgPd-1) for the ethanol oxidation reaction under alkaline conditions.
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Affiliation(s)
- Jiacheng Zhang
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China. .,Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, P. R. China
| | - Tingting Wan
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China. .,Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, P. R. China
| | - Xianlong Yang
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China. .,Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, P. R. China
| | - Qiuyu Li
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China. .,Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, P. R. China
| | - Dong Xiang
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China.
| | - Xiaoyou Yuan
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China.
| | - Zhenjie Sun
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China.
| | - Peng Li
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China. .,Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, P. R. China
| | - Manzhou Zhu
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China. .,Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, P. R. China
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11
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Li Q, Wan T, Yang X, Xiang D, Yuan X, Sun Z, Li P, Zhu M. Low Pt-Doped Crystalline/Amorphous Heterophase Pd 12P 3.2 Nanowires as Efficient Catalysts for Methanol Oxidation. Inorg Chem 2022; 61:12466-12472. [PMID: 35894934 DOI: 10.1021/acs.inorgchem.2c02055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Pd-based catalysts are attractive anodic electrocatalysts for direct methanol fuel cells owing to their low cost and natural abundance. However, they suffer from sluggish reaction kinetic and insufficient electroactivity in methanol oxidation reaction (MOR). In this work, we developed a facile one-pot approach to fabricate low Pt-doped Pd12P3.2 nanowires with crystalline/amorphous heterophase (termed Pt-Pd12P3.2 NWs) for MOR. The unique crystalline/amorphous heterophase structures promote the catalytic activity by the plentiful active sites at the phase boundaries and/or interfaces and the synergistic effect between different phases. Moreover, the incorporation of trace Pt into Pd lattices modifies the electronic structure and improves the electron transfer ability. Therefore, the obtained Pt-Pd12P3.2 NWs display significantly enhanced electrocatalytic performance toward MOR with the mass activity of 2.35 A mgPd+Pt-1, which is 9.0, 2.9, and 2.0 times higher than those of the commercial Pd/C (0.26 A mgPd-1), Pd12P3.2 NWs (0.82 A mgPd-1), and commercial Pt/C (1.19 A mgPt-1). The high mass activity enables the Pt-Pd12P3.2 NWs to be the promising Pd-based catalysts for MOR.
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Affiliation(s)
- Qiuyu Li
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, Anhui, P. R. China.,Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, P. R. China
| | - Tingting Wan
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, Anhui, P. R. China.,Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, P. R. China
| | - Xianlong Yang
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, Anhui, P. R. China.,Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, P. R. China
| | - Dong Xiang
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, Anhui, P. R. China
| | - Xiaoyou Yuan
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, Anhui, P. R. China
| | - Zhenjie Sun
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, Anhui, P. R. China
| | - Peng Li
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, Anhui, P. R. China.,Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, P. R. China
| | - Manzhou Zhu
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei 230601, Anhui, P. R. China.,Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, P. R. China
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12
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Du L, Wan T, Jin Y, Yuan J. Abstract 5553: Anti-CD19-CD22 antibody drug conjugate to reduce tumor recurrence in B-cell hematologic cancers. Cancer Res 2022. [DOI: 10.1158/1538-7445.am2022-5553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
With 1,279,000 new cases in 2020 and high incidence of relapse, hematologic cancers present significant opportunity for drug development. B-cell caners arise from various developmental stages of the B lymphocyte, and occur in several forms, including leukemia, lymphoma, and multiple myeloma. CD19 and CD22 are validated targets for B cell cancers, each with multiple drugs approved. However, single targeting therapies showed a poor median response likely due to loss of antigen expression upon treatment stress. CD19&CD22 dual targeting antibody drug conjugate can be a powerful killer of B-cell cancers, with more targeted patient populations due to the high expression of CD19, and good anti-tumor efficacy due to the high internalizing ability of CD22.To this end, we developed 7E11-13G9, which is a bispecific antibody designed for antibody-drug-conjugate for a larger market of B-cell hematological cancers.By the strong CD19 binding arm of 7E11 and the efficient CD22-mediated internalizing arm of 13G9, 7E11-13G9 BsAb kills more tumor cells with high potency and efficacy. In tumor cell killing assay, bispecific 7E11-13G9 showed significantly better anti-tumor efficacy than any of the benchmark antibodies, and even better than the combination of the anti-CD19 benchmark Loncastuximab with the anti-CD22 benchmark Inotuzumab. Significantly better anti-tumor effect and delayed tumor recurrence of CD19-CD22 bispecific compared with single target was demonstrated in Nalm6 acute lymphocyte leukemia model. 7E11-13G9 BsAb is stable and has good productivity in transient expression. Proof of concept study of antibody drug conjugate based on 7E11-13G9 was prepared, and showed great anti-tumor efficacy both in vitro and in vivo.
Citation Format: Liang Du, Tingting Wan, Yi Jin, Jijun Yuan. Anti-CD19-CD22 antibody drug conjugate to reduce tumor recurrence in B-cell hematologic cancers [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr 5553.
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Affiliation(s)
- Liang Du
- 1Shanghai Genbase Biotechnology Co., Ltd., Shanghai, China
| | - Tingting Wan
- 1Shanghai Genbase Biotechnology Co., Ltd., Shanghai, China
| | - Yi Jin
- 1Shanghai Genbase Biotechnology Co., Ltd., Shanghai, China
| | - Jijun Yuan
- 1Shanghai Genbase Biotechnology Co., Ltd., Shanghai, China
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13
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Wu Q, Huang X, Wan T, Xiang D, Li X, Wang K, Yuan X, Li P, Zhu M. Enhancing Electrocatalytic Methanol Oxidation on PtCuNi Core–Shell Alloy Structures in Acid Electrolytes. Inorg Chem 2022; 61:2612-2618. [DOI: 10.1021/acs.inorgchem.1c03664] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Qianqian Wu
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, P. R. China
| | - Xin Huang
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Tingting Wan
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, P. R. China
| | - Dong Xiang
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Xiaowu Li
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Kun Wang
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Xiaoyou Yuan
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China
| | - Peng Li
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, P. R. China
| | - Manzhou Zhu
- Department of Chemistry and Center for Atomic Engineering of Advanced Materials, School of Materials Science and Engineering, Anhui Province Key Laboratory of Chemistry for In-organic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, P. R. China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Ministry of Education, Anhui University, Hefei 230601, P. R. China
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14
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Wan T, Fan P, Zhang M, Shi K, Chen X, Yang H, Liu X, Xu W, Zhou Y. Multiple Crosslinking Hyaluronic Acid Hydrogels with Improved Strength and 3D Printability. ACS Appl Bio Mater 2022; 5:334-343. [PMID: 35014821 DOI: 10.1021/acsabm.1c01141] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hyaluronic acid (HA) hydrogel is preferred for biomedicine applications, as it possesses biodegradability, biocompatibility, and cell-regulated capacity as well as high hydration nature similar to the native extracellular matrix. However, HA hydrogel fabricated via a 3D printing technique often faces poor printing properties. In this study, maleiated sodium hyaluronate (MHA) with a high substituted degree of the acrylate group (i.e., 2.27) and thiolated sodium hyaluronate (SHHA) were synthesized. By blending these modified HAs, the MHA/SHHA hydrogels were prepared via pre-crosslinking through thiol-acrylate Michael addition and subsequently covalent crosslinking using thiol-acrylate and acrylate-acrylate photopolymerization mechanisms. Rheological properties, swelling behaviors, and mechanical properties can be modulated by altering the molar ratio of the thiol group and acrylate group. The results showed that the MHA/SHHA hydrogel precursors have rapidly gelling capacity and improved compressive strength. Based on these results, high-resolution hydrogel scaffolds with good structural stability were prepared by extrusion-based 3D printing. This HA hydrogel is cytocompatible and capable of supporting adherence of L929 cells, indicating its great potential for tissue engineering scaffolds.
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Affiliation(s)
- Tingting Wan
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, People's Republic of China
| | - Penghui Fan
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, People's Republic of China
| | - Mengfan Zhang
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, People's Republic of China
| | - Kai Shi
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, People's Republic of China
| | - Xiao Chen
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, People's Republic of China
| | - Hongjun Yang
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, People's Republic of China
| | - Xin Liu
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, People's Republic of China
| | - Weilin Xu
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, People's Republic of China
| | - Yingshan Zhou
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials, Ministry of Education, Wuhan Textile University, Wuhan 430073, People's Republic of China.,College of Materials Science and Engineering, Wuhan Textile University, Wuhan 430073, People's Republic of China.,Humanwell Healthcare Group Medical Supplies Company Ltd., Wuhan 430073, People's Republic of China
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15
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Li X, Bai C, Wang H, Wan T, Li Y. LncRNA MEG3 regulates autophagy and pyroptosis via FOXO1 in pancreatic β-cells. Cell Signal 2022; 92:110247. [DOI: 10.1016/j.cellsig.2022.110247] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 12/31/2021] [Accepted: 01/10/2022] [Indexed: 12/16/2022]
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16
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Zhou Y, Huang H, Wan T, Feng YL, Liu JH. [Chronic radiation-induced rectal injury after adjuvant radiotherapy for pelvic malignant tumors: report based on a phase 3 randomized clinical trial]. Zhonghua Wei Chang Wai Ke Za Zhi 2021; 24:962-968. [PMID: 34823296 DOI: 10.3760/cma.j.cn441530-20210720-00292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Objective: Radiotherapy is one of the standard treatments for pelvic malignant tumors. However, researches associated with intestinal radiation injury and the quality of life (QoL) of patients receiving radiotherapy were lacking in the past. This study aims to analyze the occurrence of radiation-induced rectal injury after adjuvant radiotherapy for pelvic malignant tumors and call for more attention on this issne. Methods: A retrospectively observational study was conducted. Case data of cervical cancer patients from the database of STARS phase 3 randomized clinical trial (NCT00806117) in Sun Yat-sen University Cancer Center were analyzed. A total of 848 cervical cancer patients who received adjuvant radiation following hysterectomy and pelvic lymphadenectomy in Sun Yat-sen University Cancer Center from February 2008 to August 2015 were recruited. The pelvic radiation dosage was 1.8 Gy/day or 2.0 Gy/day, five times every week, and the total dosage was 40-50 Gy. Among 848 patients, 563 patients received radiation six weeks after surgery, of whom 282 received adjuvant radiation alone and 281 received concurrent chemoradiotherapy (weekly cisplatin); other 285 patients received sequential chemoradiotherapy (paclitaxel and cisplatin). Acute adverse events, chronic radiation damage of rectum, and QoL were collected and analyed. The digestive tract symptoms and QoL were evaluated based on EORTC QLQ-C30 questionnaires at one week after surgery (M0), during adjuvant therapy period (M1), and at 12 months and 24 months after the completion of treatments (M12 and M24), respectively. Higher scores in the functional catalog and overall quality of life indicated better quality of life, while higher scores in the symptom catalog indicated severe symptoms and worse QoL. Chronic radiation rectal injury was defined as digestive symptoms that were not improved within three months after radiotherapy. Grading standard of acute adverse events and chronic radiation rectal injury was according to the gastrointestinal part of National Cancer Institute Common Terminology Criteria for Adverse Events, version 4.0 (NCI-CTCAE Version 4.0). Results: The mean total radiation dosage of 848 patients was (47.8±4.6) Gy. During adjuvant therapy, the common symptoms of acute intestinal dysfunction were nausea (46.0%, 390/848), vomiting (33.8%, 287/848), constipation (16.3%, 138/848) and abdominal pain (10.3%, 87/848). At M12 and M24, the number of 0 QLQ-C30 questionnaires collected was 346 and 250, respectively. QLQ-C30 questionnaires showed that the scores of nausea or vomiting, appetite decrease, diarrhea, constipation, etc. were improved obviously at M12 or M24 compared with those at M0 or during M1 (all P<0.05). As the extension of the follow-up time, the score of the overall QoL of patients gradually increased [M0: 59.7 (0.0-100.0); M1: 63.1 (0.0-100.0); M12: 75.2 (0.0-100.0); M24: 94.1 (20.0-120.0); H=253.800, P<0.001]. Twelve months after the completion of treatments, the incidence of chronic radiation rectal injury was 9.8% (34/346), mainly presenting as abdominal pain, constipation, stool blood, diarrhea, mostly at level 1 to 2 toxicity (33/34, 97.1%). One patient (0.3%) developed frequent diarrhea (>8 times/d), which was level 3 toxicity. Twenty-four months after all treatments, the incidence of chronic radiation rectal injury was 9.6% (24/250), which was not decreased significantly compared to that in the previous period (χ(2)=0.008, P=0.927). The symotoms of one patient with level 3 toxicity was not relieved. Conclusions: The common symptoms of patients with pelvic maligant tumors during postoperative adjuvant radiotherapy include nausea, vomiting, constipation, abdominal pain and diarrhea. These symptoms are alleviated obviously at 12 and 24 months after adjuvant radiotherapy, and the QoL is significantly improved. However, a few patients may develop chronic radiation rectal injury which is not improved for years or even decades, and deserves attention in clinical practice.
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Affiliation(s)
- Y Zhou
- Department of Gynecologic Oncology, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - H Huang
- Department of Gynecologic Oncology, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - T Wan
- Department of Gynecologic Oncology, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Y L Feng
- Department of Gynecologic Oncology, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - J H Liu
- Department of Gynecologic Oncology, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
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Chen J, Wei W, Zheng L, Li H, Feng Y, Wan T, Huang Q, Liu G, Tu H, Qiu J, Jiang X, Xiong Y, Zheng M, Li J, Huang H, Song L, Liu J, Zhang Y. 732P Anlotinib plus pemetrexed in patients with platinum-resistant ovarian cancer: A single-arm, open-label, phase II study. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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18
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Du L, Zhang H, Jin L, Chen Y, Wan T, Xu L. Abstract 912: CLDN6 and CLDN9 dual targeting antibody drug conjugates for the treatment of ovarian and endometrial cancers. Cancer Res 2021. [DOI: 10.1158/1538-7445.am2021-912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Claudins (CLDNs) are tight junction proteins that regulate epithelial-cell barrier function and polarity. Up-regulation of certain CLDN proteins has been associated with the malignant phenotype. Embryonic, stem-cell specific CLDN6 is absent in normal adult tissues. Our in-house data showed that it is highly expressed in serous ovarian (66% cases showed 2+/3+/4+ expression of CLDN6), and testis cancers (100% cases showed 4+ expression of CLDN6) in Chinese population, and is an “ideal” target in these cancer types. CLDN9, sharing high homology with CLDN6 exhibits similar distribution patterns with CLDN6, like the absence in normal tissues and up-regulation in ovarian and endometrial cancer. We propose to simultaneously target both CLDN6 and CLDN9 for treatment of ovarian cancer and endometrial cancer to achieve better anti-tumor efficacy and expand the treatment to a larger population of patients. To this end, we designed a high-through-put antibody screening process and discovered two antibodies GB7008-03 and GB7008-05, both of which binds CLDN6 and CLDN9 with high affinity, while sparing other CLDN members. Both candidates demonstrated superior antibody-mediated antigen internalization than ASP1650, the forerunner in clinical trials. GB7008-03 and GB7008-05 also showed good ADCC potency on CLDN6 expressing tumor cell lines. Currently we are developing antibody-drug-conjugates based on these two antibodies. In vivo efficacy of these ADCs in CDX models will be presented.
Citation Format: Liang Du, Hongyan Zhang, Lina Jin, Yali Chen, Tingting Wan, Liuliu Xu. CLDN6 and CLDN9 dual targeting antibody drug conjugates for the treatment of ovarian and endometrial cancers [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2021; 2021 Apr 10-15 and May 17-21. Philadelphia (PA): AACR; Cancer Res 2021;81(13_Suppl):Abstract nr 912.
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Affiliation(s)
- Liang Du
- Shanghai Genechem Co., Ltd., Shanghai, China
| | | | - Lina Jin
- Shanghai Genechem Co., Ltd., Shanghai, China
| | - Yali Chen
- Shanghai Genechem Co., Ltd., Shanghai, China
| | | | - Liuliu Xu
- Shanghai Genechem Co., Ltd., Shanghai, China
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Abstract
Type 2 diabetes mellitus (T2DM) is a major chronic disease that is characterized by pancreatic β-cell dysfunction and insulin resistance. Autophagy is a highly conserved intracellular recycling pathway and is involved in regulating intracellular homeostasis. Transcription factor Forkhead box O1 (FoxO1) also regulates fundamental cellular processes, including cell differentiation, metabolism and apoptosis, and proliferation to cellular stress. Increasing evidence suggest that autophagy and FoxO1 are involved in the pathogenesis of T2DM, including β-cell viability, apoptosis, insulin secretion and peripheral insulin resistance. Recent studies have demonstrated that FoxO1 improves insulin resistance by regulating target tissue autophagy. The present review summarizes current literature on the role of autophagy and FoxO1 in T2DM. The participation of FoxO1 in the development and occurrence of T2DM via autophagy is also discussed.
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Affiliation(s)
- Xiudan Li
- Department of Endocrinology, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Tingting Wan
- Department of Endocrinology, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Yanbo Li
- Department of Endocrinology, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
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Wang H, Chen D, Wan T, Zhao YL, Sun ZJ, Fang W, Dong F, Lian GL, Han LY. [Application of deep learning neural network in pathological image classification of non-inflammatory aortic membrane degeneration]. Zhonghua Bing Li Xue Za Zhi 2021; 50:620-625. [PMID: 34078050 DOI: 10.3760/cma.j.cn112151-20201205-00902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the value of deep learning in classifying non-inflammatory aortic membrane degeneration. Methods: Eighty-nine cases of non-inflammatory aortic media degeneration diagnosed from January to June 2018 were collected at Beijing Anzhen Hospital, Capital Medical University, China and scanned into digital sections. 1 627 hematoxylin and eosin stained photomicrographs were extracted. Combined with the ResNet18-based deep convolution neural network model, 4-category classification of pathological images were performed to diagnose the non-inflammatory aortic lesion. Results: The prediction model of artificial intelligence assisted diagnosis had the best accuracy, sensitivity and precision in identifying lesions with smooth muscle cell nuclei loss, which were 99.39%, 98.36% and 98.36%, respectively. The classification accuracy of elastic fiber fragmentation and/or loss lesions was 98.08%, while that of intralamellar mucoid extracellular matrix accumulation lesions was 96.93%. The overall accuracy of the classification model was 96.32%, and the area under the curve was 0.982. Conclusions: The accuracy of deep learning neural network model in the 4-category classification of non-inflammatory aortic lesionsis confirmed based on digital photomicrographs. This method can effectively improve the diagnostic efficiency of pathologists.
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Affiliation(s)
- H Wang
- Department of Pathology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - D Chen
- Department of Pathology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - T Wan
- School of Biomedical Science and Medical Engineering, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, China
| | - Y L Zhao
- Department of Pathology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Z J Sun
- School of Biomedical Science and Medical Engineering, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, China
| | - W Fang
- Department of Pathology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - F Dong
- Department of Pathology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - G L Lian
- Department of Pathology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - L Y Han
- Department of Pathology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
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21
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Guo W, Hu S, Zeng D, Yan C, Zheng R, Gao J, Wan T, Zhuang W, Yang J. The prognostic role of ovarian endometriosis in symptomatic adenomyosis patients underwent uterine artery embolization. Ann Palliat Med 2021; 10:2577-2583. [PMID: 33548995 DOI: 10.21037/apm-20-1381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 11/27/2020] [Indexed: 11/06/2022]
Abstract
BACKGROUND To explore the prognostic role of ovarian endometriosis in symptomatic adenomyosis patients underwent uterine artery embolization (UAE). METHODS This was a retrospective, single-center study. A total of 76 patients with adenomyosis who underwent UAE in The First Affiliated Hospital of Sun Yat-sen University between May 2009 and July 2016 were enrolled in this study. These patients were divided into two groups based on whether complicated with ovarian endometriosis. After UAE, the patients were followed up for 12 months. The improvements of dysmenorrhea and menorrhagia were evaluated according to the symptom relief criteria. The improvement rates in both groups were analyzed and compared. RESULTS Among the 76 patients with adenomyosis, 17 (22.3%) were diagnosed with OE and 59 (77.6%) were non-OE. In the OE group, all patients (17/17, 100%) had dysmenorrhea and 11 (11/17, 64.7%) had menorrhagia. In non-OE group, 57 patients (57/59, 96.6%) had dysmenorrhea and 50 (50/59, 84.7%) had menorrhagia. The improvement rates of dysmenorrhea in the two groups were 47.1% (OE group) and 86.0% (non-OE group), respectively (P<0.05). The improvement rates of menorrhagia in the two groups were 63.6% (OE group) and 84.0% (non-OE group), respectively (P=0.263). CONCLUSIONS Patients without OE showed a lower incidence of dysmenorrhea and may have an advantage in the improvement of dysmenorrhea compared with those with OE when they underwent UAE. However, no significant difference was observed in the improvement of menorrhagia.
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Affiliation(s)
- Wenbo Guo
- Department of Interventional Radiology, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China.
| | - Siqi Hu
- Department of Interventional Radiology, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Dan Zeng
- Department of Ultrasound, the Eastern Hospital of the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Chaogui Yan
- Diagnostic Radiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Rui Zheng
- Department of Interventional Radiology, Tongling People's Hospital, Tongling, China
| | - Jian Gao
- Department of Interventional Radiology, Baoan District People's Hospital of Shenzhen, Shenzhen, China
| | - Tingting Wan
- Diagnostic Radiology, Jiangxi Cancer Hospital; Nanchang, China
| | - Wenquan Zhuang
- Department of Interventional Radiology, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Jianyong Yang
- Department of Interventional Radiology, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
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Wan T, Li X, Li Y. The role of TRIM family proteins in autophagy, pyroptosis, and diabetes mellitus. Cell Biol Int 2021; 45:913-926. [PMID: 33438267 DOI: 10.1002/cbin.11550] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 01/06/2021] [Accepted: 01/10/2021] [Indexed: 01/22/2023]
Abstract
The ubiquitin-proteasome system, which is one of the systems for cell protein homeostasis and degradation, happens through the ordered and coordinated action of three types of enzymes, E1 ubiquitin-activating enzyme, E2 ubiquitin-carrier enzyme, E3 ubiquitin-protein ligase. Tripartite motif-containing (TRIM) family proteins are the richest subfamily of really interesting new gene E3 ubiquitin ligases, which play a critical role not only in many biological processes, including proliferation, apoptosis, pyroptosis, innate immunity, and autophagy, but also many diseases like cancer, diabetes mellitus, and neurodegenerative disease. Increasing evidence suggests that TRIM family proteins play a vital role in modulating autophagy, pyroptosis, and diabetes mellitus. The aim of this review is to discuss the role of TRIM proteins in the regulation of autophagy, pyroptosis, diabetes mellitus, and diabetic complications.
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Affiliation(s)
- Tingting Wan
- Department of Endocrinology, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Xiudan Li
- Department of Endocrinology, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Yanbo Li
- Department of Endocrinology, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
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23
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Chen J, Wei W, Zheng L, Li H, Feng Y, Wan T, Qiu J, Jiang X, Xiong Y, Li J, Huang H, Song L, Liu J, Zhang Y. 841P Phase II study of anlotinib plus pemetrexed for platinum-resistant epithelial ovarian cancer. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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24
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Wan T, Ye J, Wu P, Cheng M, Jiang B, Wang H, Li J, Ma J, Wang L, Huang X. Recurrent pneumothorax and intrapulmonary cavitary lesions in a male patient with vascular Ehlers-Danlos syndrome and a novel missense mutation in the COL3A1 gene: a case report. BMC Pulm Med 2020; 20:149. [PMID: 32471395 PMCID: PMC7257228 DOI: 10.1186/s12890-020-1164-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 04/22/2020] [Indexed: 11/16/2022] Open
Abstract
Background Vascular Ehlers-Danlos syndrome (vEDS) is a rare autosomal dominant hereditary collagen disease caused by a defect or deficiency in the pro-α1 chain of type III procollagen encoded by the COL3A1 gene. Patients with vEDS rarely present with multiple pneumothoraces. The clinical features of this disease are not familiar to clinicians and are easily missed. We report a patient with a novel missense mutation in the COL3A1 gene (NM_000090.3: c.2977G > A) and hope to provide clinicians with valuable information. Case presentation We reported the case of a young man presenting with frequent episodes of pneumothorax and intrapulmonary cavities and nodular lesions without arterial or visceral complications. His skin was thin and transparent, and the joints were slightly hypermobile. Whole-exome sequencing (chip capture high-throughput sequencing) revealed a heterozygous missense mutation in exon 41 of the COL3A1 gene (NM_000090.3: c.2977G > A), confirming the diagnosis of vEDS. vEDS remains a very rare and difficult diagnosis to determine. Conclusion When a patient presents with recurrent pneumothorax, intrapulmonary cavities and nodular lesions, thin and transparent skin, and hypermobile joints, clinicians should consider the diagnosis of vEDS.
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Affiliation(s)
- Tingting Wan
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Key Laboratory of Heart and Lung, Wenzhou, Zhejiang, 325000, People's Republic of China
| | - Jinyan Ye
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Key Laboratory of Heart and Lung, Wenzhou, Zhejiang, 325000, People's Republic of China
| | - Peiliang Wu
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Key Laboratory of Heart and Lung, Wenzhou, Zhejiang, 325000, People's Republic of China
| | - Mengshi Cheng
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Key Laboratory of Heart and Lung, Wenzhou, Zhejiang, 325000, People's Republic of China
| | - Baihong Jiang
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Key Laboratory of Heart and Lung, Wenzhou, Zhejiang, 325000, People's Republic of China
| | - Hailong Wang
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Key Laboratory of Heart and Lung, Wenzhou, Zhejiang, 325000, People's Republic of China
| | - Jianmin Li
- Division of Pathology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, People's Republic of China
| | - Jun Ma
- Division of Pathology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, People's Republic of China
| | - Liangxing Wang
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Key Laboratory of Heart and Lung, Wenzhou, Zhejiang, 325000, People's Republic of China.
| | - Xiaoying Huang
- Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Key Laboratory of Heart and Lung, Wenzhou, Zhejiang, 325000, People's Republic of China.
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25
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Gao LY, Hao XL, Zhang L, Wan T, Liu JY, Cao J. Identification and characterization of differentially expressed lncRNA in 2,3,7,8-tetrachlorodibenzo- p-dioxin-induced cleft palate. Hum Exp Toxicol 2020; 39:748-761. [PMID: 31961203 DOI: 10.1177/0960327119899996] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) is a ubiquitous environmental pollutant and also a strong teratogen for cleft palate (CP). But up to now, the underlying molecular mechanisms of TCDD-induced CP are largely unknown. More recently, accumulating evidences are revealing important roles of long noncoding RNAs (lncRNAs) in all kinds of diseases including CP. However, the role and molecular mechanism of lncRNAs in TCDD-induced CP are still largely unexplored. Thus, identification of differentially expressed lncRNA (DEL) might help figuring out the mechanism of CP induced by TCDD. In this study, a CP offspring model of C57BL/6 female mice was generated by TCDD (64 µg/kg body weight) induce on embryo day 10 (E10). The incidence rate of CP was 100% in the TCDD group (105) after cervical dislocation on E16. Then, the high-throughput RNA sequencing (RNA-seq) was established to search a comprehensive profile of the lncRNAs. In addition, a coexpression network of lncRNA and messenger RNA (mRNA) was performed to discern potential mechanism. The result showed that 26,246 novel lncRNAs and 9635 known lncRNAs were screened out, and 413 lncRNA transcripts and 65 mRNA transcripts were identified as being significantly different between the CP group and control group. Notably, we found that there are seven lncRNAs that can target Smad1 and Smad5, which are key molecules of bone morphogenetic protein (BMP) signaling pathway, which suggested that they may be concerned with BMP signaling in TCDD-induced CP. In addition, some lncRNAs targeted the important molecules of Hippo and Wnt signaling pathways. These results suggested that characteristic lncRNA alterations may play a critical role in TCDD-induced CP, which provided a theoretical basis for further research.
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Affiliation(s)
- L-Y Gao
- School of Public Health, Xinxiang Medical University, Xinxiang, People's Republic of China
| | - X-L Hao
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China
| | - L Zhang
- School of Public Health, Xinxiang Medical University, Xinxiang, People's Republic of China
| | - T Wan
- School of Basic Medical, Jiujiang University, Jiujiang, People's Republic of China
| | - J-Y Liu
- Institute of Toxicology, College of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China
| | - J Cao
- School of Public Health, Xinxiang Medical University, Xinxiang, People's Republic of China
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Yu C, Yang L, Cai M, Zhou F, Xiao S, Li Y, Wan T, Cheng D, Wang L, Zhao C, Huang X. Down-regulation of MTHFD2 inhibits NSCLC progression by suppressing cycle-related genes. J Cell Mol Med 2019; 24:1568-1577. [PMID: 31778025 PMCID: PMC6991687 DOI: 10.1111/jcmm.14844] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 10/09/2019] [Accepted: 10/26/2019] [Indexed: 01/08/2023] Open
Abstract
Methylenetetrahydrofolate dehydrogenase 2 (MTHFD2) is a bifunctional enzyme located in the mitochondria. It has been reported to be overexpressed in several malignancies. However, the relationship between the expression of MTHFD2 and non-small cell lung cancer (NSCLC) remains largely unknown. In this study, we found that MTHFD2 was significantly overexpressed in NSCLC tissues and cell lines. Knockdown of MTHFD2 resulted in reduced cell growth and tumorigenicity in vitro and in vivo. Besides, the mRNA and protein expression level of cell cycle genes, such as CCNA2, MCM7 and SKP2, was decreased in MTHFD2 knockdown H1299 cells. Our results indicate that the inhibitory effect of MTHFD2 knockdown on NSCLC may be mediated via suppressing cell cycle-related genes. These findings delineate the role of MTHFD2 in the development of NSCLC and may have potential applications in the treatment of NSCLC.
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Affiliation(s)
- Chang Yu
- Key Laboratory of Heart and Lung, Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Interventional Therapy Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Lehe Yang
- Key Laboratory of Heart and Lung, Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Mengsi Cai
- Key Laboratory of Heart and Lung, Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Feng Zhou
- Key Laboratory of Heart and Lung, Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Sisi Xiao
- Key Laboratory of Heart and Lung, Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yaozhe Li
- Key Laboratory of Heart and Lung, Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Tingting Wan
- Key Laboratory of Heart and Lung, Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Dezhi Cheng
- Department of Thoracic Cardiovascular, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Liangxing Wang
- Key Laboratory of Heart and Lung, Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Chengguang Zhao
- Key Laboratory of Heart and Lung, Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Xiaoying Huang
- Key Laboratory of Heart and Lung, Division of Pulmonary Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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27
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Fu Y, Su L, Cai M, Yao B, Xiao S, He Q, Xu L, Yang L, Zhao C, Wan T, Shao L, Wang L, Huang X. Downregulation of CPA4 inhibits non small-cell lung cancer growth by suppressing the AKT/c-MYC pathway. Mol Carcinog 2019; 58:2026-2039. [PMID: 31397502 PMCID: PMC6851884 DOI: 10.1002/mc.23095] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 07/23/2019] [Accepted: 07/25/2019] [Indexed: 12/28/2022]
Abstract
Carboxypeptidase A4 (CPA4) is a member of the metallocarboxypeptidase family. A previous study indicated that CPA4 may participate in the modulation of peptide hormone activity and hormone-regulated tissue growth and differentiation. However, the role of CPA4 in lung tumorigenesis remains unclear. Our study revealed that CPA4 expression was higher in both lung cancer cells and tumor tissues. We performed 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide assays, colony-formation assays, and Cellomics ArrayScan Infinity analysis to demonstrate that CPA4 knockdown inhibited non small-cell lung cancer (NSCLC) cell proliferation. Conversely, ectopic expression of CPA4 enhanced lung cancer cell proliferation. Consistent with these observations, we generated xenograft tumor models to confirm that CPA4 downregulation suppressed NSCLC cell growth. Mechanistically, we revealed that CPA4 downregulation may induce apoptosis and G1-S arrest by suppressing the protein kinase B/c-MYC pathway. These results suggest that CPA4 has an oncogenic effect on lung cancer growth. Taken together, we identified a novel gene in lung cancer that might provide a basis for new therapeutic targets.
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Affiliation(s)
- Yangyang Fu
- Division of Pulmonary Medicine, Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Lihuang Su
- Division of Pulmonary Medicine, Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Mengsi Cai
- Division of Pulmonary Medicine, Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Boyang Yao
- Division of Pulmonary Medicine, Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Sisi Xiao
- Division of Pulmonary Medicine, Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Qinlian He
- Division of Pulmonary Medicine, Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Le Xu
- Division of Pulmonary Medicine, Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Lehe Yang
- Division of Pulmonary Medicine, Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Chengguang Zhao
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Tingting Wan
- Division of Pulmonary Medicine, Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Lianyou Shao
- Division of Pulmonary Medicine, Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Liangxing Wang
- Division of Pulmonary Medicine, Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiaoying Huang
- Division of Pulmonary Medicine, Key Laboratory of Heart and Lung, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
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Sui MH, Wang HG, Chen MY, Wan T, Hu BY, Pan YW, Li H, Cai HY, Cui C, Lu SC. Assessment of the effect of the Aquamantys® system on local recurrence after hepatectomy for hepatocellular carcinoma through propensity score matching. Clin Transl Oncol 2019; 21:1634-1643. [DOI: 10.1007/s12094-019-02092-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Accepted: 03/13/2019] [Indexed: 12/13/2022]
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Wan T, Obayashi H, Sasa T. Thermal-Hydraulic Analysis of the LBE Spallation Target Head in JAEA. NUCL TECHNOL 2019. [DOI: 10.1080/00295450.2018.1478591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- T. Wan
- Japan Atomic Energy Agency, J-PARC Center, 2-4 Shirakata, Tokai-mura, Ibaraki 319-1195, Japan
| | - H. Obayashi
- Japan Atomic Energy Agency, J-PARC Center, 2-4 Shirakata, Tokai-mura, Ibaraki 319-1195, Japan
| | - T. Sasa
- Japan Atomic Energy Agency, J-PARC Center, 2-4 Shirakata, Tokai-mura, Ibaraki 319-1195, Japan
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Lv J, Li S, Wan T, Yang Y, Cheng Y, Xue R. Inhibition of microRNA-30d attenuates the apoptosis and extracellular matrix degradation of degenerative human nucleus pulposus cells by up-regulating SOX9. Chem Biol Interact 2018; 296:89-97. [DOI: 10.1016/j.cbi.2018.09.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Revised: 09/10/2018] [Accepted: 09/18/2018] [Indexed: 12/19/2022]
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Feng Y, Liu J, Huang H, Zhang C, Wan T, Tong C, Deng T, Tu H, Huang Y, Liu G, Huang Q, Liu Z. Comparison of PARPi with angiogenesis inhibitors and chemotherapy for maintenance in ovarian cancer: A network meta-analysis. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy285.183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Zhou X, Pan C, Liang A, Wang L, Wan T, Yang G, Gao C, Wong WY. Enhanced figure of merit of poly(9,9-di- n
-octylfluorene-alt-benzothiadiazole) and SWCNT thermoelectric composites by doping with FeCl 3. J Appl Polym Sci 2018. [DOI: 10.1002/app.47011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- X. Zhou
- Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering; Shenzhen University; Shenzhen 518060 China
| | - C. Pan
- Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering; Shenzhen University; Shenzhen 518060 China
| | - A. Liang
- Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering; Shenzhen University; Shenzhen 518060 China
| | - L. Wang
- Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering; Shenzhen University; Shenzhen 518060 China
| | - T. Wan
- Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering; Shenzhen University; Shenzhen 518060 China
| | - G. Yang
- Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering; Shenzhen University; Shenzhen 518060 China
| | - C. Gao
- College of Chemistry and Chemical Engineering; Shenzhen University; Shenzhen 518060 China
| | - W.-Y. Wong
- Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering; Shenzhen University; Shenzhen 518060 China
- Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hung Hom Hong Kong
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Tu H, Wan T, Gu H, Liu J. Sentinel lymph node biopsy combined with frozen section examination in cervical cancer: A single-institution pilot study. Gynecol Oncol 2018. [DOI: 10.1016/j.ygyno.2018.04.223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Zhu A, Zhang G, Wan T, Shi T, Wang H, Wu M, Wang C, Huang S, Guo Y, Yu H, Shao Z. Evaluation of SrSc0.175Nb0.025Co0.8O3-δ perovskite as a cathode for proton-conducting solid oxide fuel cells: The possibility of in situ creating protonic conductivity and electrochemical performance. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2017.11.037] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Tu H, Sun P, Gu H, Zhang X, Huang H, Wan T, Liu J. Clinical significance and prognostic value of femoral lymph node metastasis in FIGO stage III vulvar carcinoma. Eur J Surg Oncol 2017; 43:1768-1775. [DOI: 10.1016/j.ejso.2017.05.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 04/20/2017] [Accepted: 05/18/2017] [Indexed: 11/17/2022] Open
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Affiliation(s)
- Tingting Wan
- College of Mechanical and Electric Engineering; Beijing University of Chemical Technology; Beijing 100029 China
| | - Seeram Ramakrishna
- Nanoscience and Nanotechnology Initiative; National University of Singapore; Singapore 11576 Singapore
| | - Yong Liu
- College of Mechanical and Electric Engineering; Beijing University of Chemical Technology; Beijing 100029 China
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Guo Y, Wan T, Zhu A, Shi T, Zhang G, Wang C, Yu H, Shao Z. Performance and durability of a layered proton conducting solid oxide fuel cell fueled by the dry reforming of methane. RSC Adv 2017. [DOI: 10.1039/c7ra07710f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Layered H+-SOFCs with a LN-1, LN-2 or Ni/La2O3 catalyst layer had great cell performance for dry reforming of methane as fuel.
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Affiliation(s)
- Youmin Guo
- School of Physics and Materials Science
- Anhui University
- Hefei
- China
| | - Tingting Wan
- School of Physics and Materials Science
- Anhui University
- Hefei
- China
| | - Ankang Zhu
- School of Physics and Materials Science
- Anhui University
- Hefei
- China
| | - Tingting Shi
- School of Physics and Materials Science
- Anhui University
- Hefei
- China
| | - Guilin Zhang
- School of Physics and Materials Science
- Anhui University
- Hefei
- China
| | - Chunchang Wang
- School of Physics and Materials Science
- Anhui University
- Hefei
- China
| | - Hao Yu
- College of Chemical and Environmental Engineering
- Shandong University of Science and Technology
- Qingdao
- China
| | - Zongping Shao
- Jiangsu National Synergetic Innovation Center for Advanced Material
- College of Energy
- State Key Laboratory of Materials-Oriented Chemical Engineering
- Nanjing Tech University
- Nanjing 210009
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Xu MY, Shi XJ, Lu F, Wan T, Wang HG, Chen MY, He L, Shi HD. [Analysis of 113 cases with mucinous cystic neoplasms in a single institutional study]. Zhonghua Wai Ke Za Zhi 2016; 54:196-200. [PMID: 26932888 DOI: 10.3760/cma.j.issn.0529-5815.2016.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To describe the clinicopathological characteristics and prognostic factors of mucinous cystic neoplasm(MCN). METHODS One hundred and thirteen patients with MCN comfirmed by histological examination admitted in People's Liberation Army General Hospital from January 1994 to June 2015 were analyzed, including 21 male and 92 female patients with mean age of (50.2±14.5) years. Forty-eight patients had incidental discovery of their cystic neoplasm for another reason, 65 patients were symptomatic, and abdominal pain or distension was main clinical symptom. Among 113 patients with MCN, 75 cases were MCN with dysplasia, and 38 cases were MCN with invasive carcinoma. Wilcoxon test and χ(2) test, et al were used to analyzed the data, respectively. RESULTS MCN was mostly located in body and tail of pancreas.Sex, mean age, clinical symptom, tumor size, and CA19-9 showed significant difference between MCN with dysplasia and MCN with invasive carcinoma (all P<0.05). The presence of a solid component (χ(2)=32.460, P=0.000)and main pancreatic duct dilation(χ(2)= 5.729, P=0.022) were significantly associated with malignancy. Fifty-eight patients with dysplasia were followed up, only one patient occurred tumor recurrence. Thirty-one patients with malignancy were followed up, among which there were 22 patients dead, 1-, 3-, 5-year survival of MCN with malignancy was 76.9%, 56.5%, 36.6%, respectively. Lymphatic metastasis and tumor recurrence were important prognostic factors of MCN with malignancy(both P<0.05). CONCLUSIONS MCN is most affected by old female with no specific symptom, most tumors are located at the body and tail of the pancreas.MCN with dysplasia have excellent prognosis underwent surgery. Even with complete resection, the long-term survival of MCN with malignancy is not satisfied.
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Affiliation(s)
- M Y Xu
- Department of Hepatobiliary Surgery, People's Liberation Army General Hospital, Beijing 100853, China
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Ng L, Wan T, Chow A, Man J, Iyer D, Leung WK, Yau T, Lo O, Foo D, Poon J, Law WL, Pang R. 37P Serum microRNAs as potential biomarker for screening colorectal cancer patients. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv518.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Yuan LJ, Li JD, Zhang L, Wang JH, Wan T, Zhou Y, Tu H, Yun JP, Luo RZ, Jia WH, Zheng M. SPAG5 upregulation predicts poor prognosis in cervical cancer patients and alters sensitivity to taxol treatment via the mTOR signaling pathway. Cell Death Dis 2015; 6:e1784. [PMID: 26068792 PMCID: PMC4669841 DOI: 10.1038/cddis.2015.163] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Yuan LJ, Li JD, Zhang L, Wang JH, Wan T, Zhou Y, Tu H, Yun JP, Luo RZ, Jia WH, Zheng M. SPAG5 upregulation predicts poor prognosis in cervical cancer patients and alters sensitivity to taxol treatment via the mTOR signaling pathway. Cell Death Dis 2014; 5:e1247. [PMID: 24853425 PMCID: PMC4047857 DOI: 10.1038/cddis.2014.222] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 04/16/2014] [Accepted: 04/18/2014] [Indexed: 12/31/2022]
Abstract
Previously, we found that sperm-associated antigen 5 (SPAG5) was upregulated in pelvic lymph node metastasis–positive cervical cancer. The aim of this study is to examine the role of SPAG5 in the proliferation and tumorigenicity of cervical cancer and its clinical significance in tumor progression. In our study, SPAG5 expression in cervical cancer patients was detected using quantitative real-time polymerase chain reaction, western blotting, and immunohistochemistry; cervical cancer cell function with downregulated SPAG5 in vitro was explored using tetrazolium assay, flow cytometry, and colony formation and Transwell assays. SPAG5 was upregulated in tumor tissue compared with paired adjacent noncancerous tissues; SPAG5 upregulation in tumor tissues indicated poor disease-free survival, which was also an independent prognostic indicator for cervical cancer patients. In vitro study demonstrated that SPAG5 downregulation inhibited cell proliferation and growth significantly by G2/M arrest and induction of apoptosis, and hindered cell migration and invasion. Under SPAG5 downregulation, the sensitivity of cervical cancer cells differed according to taxol dose, which correlated with mammalian target of rapamycin (mTOR) signaling pathway activity. In general, SPAG5 upregulation relates to poor prognosis in cervical cancer patients, and SPAG5 is a regulator of mTOR activity during taxol treatment in cervical cancer.
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Affiliation(s)
- L-J Yuan
- 1] State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China [2] Department of Gynecology, Sun Yat-sen University Cancer Center; Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - J-D Li
- 1] State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China [2] Department of Gynecology, Sun Yat-sen University Cancer Center; Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - L Zhang
- 1] State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China [2] Department of Gynecology, Sun Yat-sen University Cancer Center; Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - J-H Wang
- Department of Chest, Second People's Hospital of Guangdong Province, Guangzhou 510317, China
| | - T Wan
- 1] State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China [2] Department of Gynecology, Sun Yat-sen University Cancer Center; Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Y Zhou
- 1] State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China [2] Department of Gynecology, Sun Yat-sen University Cancer Center; Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - H Tu
- 1] State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China [2] Department of Gynecology, Sun Yat-sen University Cancer Center; Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - J-P Yun
- Department of Pathology, Sun Yat-sen University Cancer Center; Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - R-Z Luo
- Department of Pathology, Sun Yat-sen University Cancer Center; Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - W-H Jia
- State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - M Zheng
- 1] State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China [2] Department of Gynecology, Sun Yat-sen University Cancer Center; Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
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Ulbrich M, Mühlsteff J, Sipilä A, Kamppi M, Koskela A, Myry M, Wan T, Leonhardt S, Walter M. The IMPACT shirt: textile integrated and portable impedance cardiography. Physiol Meas 2014; 35:1181-96. [PMID: 24846072 DOI: 10.1088/0967-3334/35/6/1181] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Measurement of hemodynamic parameters such as stroke volume (SV) via impedance cardiography (ICG) is an easy, non-invasive and inexpensive way to assess the health status of the heart. We present a possibility to use this technology for monitoring risk patients at home. The IMPACT Shirt (IMPedAnce Cardiography Textile) has been developed with integrated textile electrodes and textile wiring, as well as with portable miniaturized hardware. Several textile materials were characterized in vitro and in vivo to analyze their performance with regard to washability, and electrical characteristics such as skin-electrode impedance, capacitive coupling and subjective tactile feeling. The small lightweight hardware measures ECG and ICG continuously and transmits wireless data via Bluetooth to a mobile phone (Android) or PC for further analysis. A lithium polymer battery supplies the circuit and can be charged via a micro-USB. Results of a proof-of-concept trial show excellent agreement between SV assessed by a commercial device and the developed system. The IMPACT Shirt allows monitoring of SV and ECG on a daily basis at the patient's home.
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Affiliation(s)
- Mark Ulbrich
- RWTH Aachen University, Philips Chair for Medical Information Technology, Pauwelsstrasse 20, D-52074 Aachen, Germany
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Madabhushi A, Wan T, Bloch B, Plecha D, Thompson C, Gilmore H, Avril N, Jaffe C, Harris L. Abstract P2-02-12: Computer derived image features on DCE-MRI appear to distinguish estrogen receptor-positive breast cancers with low and high oncotype DX recurrence scores. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p2-02-12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
The Oncotype DX (ODX) is a 21 panel gene-expression based assay for identifying which Estrogen Receptor-positive (ER+) breast cancer (BCa) patients are candidates for adjuvant chemotherapy. The objective of this research was to identify whether computerized texture features on a staging DCE-MRI can distinguish ER+ BCa with low and high ODX recurrence scores (RS) (i.e. to distinguish which ER+ BCa patients are more likely to benefit from adjuvant hormonal therapy from those who require chemotherapy). This would provide a non-invasive, imaging based, pre-therapeutic assessment tool for predicting the appropriate treatment regimen. This work, to the best of our knowledge, is the first attempt to quantitatively correlate low versus high risk stratification via computer derived MRI measurements to corresponding risk stratification via the ODX assay.
52 ER+ BCa patient studies with high (>30, N = 28) and low (<18, N = 24) ODX RS were available for this study from two sites; 16 breast MRIs from the Boston Medical Center using a Phillips 1.5T magnet with a 7-channel breast coil, and 36 MRIs from the Case Medical Center using a Siemens 1.5T magnet with a 8-channel breast coil. All datasets included T1w images obtained prior to, during, and after administration of 0.1 mmol/kg of Gd-DTPA and corresponding ODX RS. For each study a radiologist picked a representative slice showing the tumor and then manually segmented the region of interest (ROI) containing the lesion. Computerized image analysis tools developed in-house via the MATLAB© programming platform were applied to the manually segmented lesion ROI for each of the 52 MRI studies to quantitatively characterize the lesion via a set of (a) 6 shape, (b) 3 pharmacokinetic (Ktrans, ve, kep) based on Tofts model (PK), (c) 12 enhancement kinetic (EK), (d) 12 intensity kinetic (IK), (e) 312 textural kinetic (TK), (f) 6 dynamic local binary pattern (DLBP), and (g) 5 dynamic histogram of oriented gradient (DHoG) features. The computer extracted features were evaluated via a linear discriminant analysis (LDA) classifier in terms of their ability to distinguish ER+ BCa as having a low or high ODX RS via a 2-fold randomized cross validation scheme. At each iteration, half of the studies were randomly selected from the 52 cases and used for training the LDA classifier and the remaining 26 studies were used for independent testing. This process was repeated 200 times. Classification performance was evaluated by area under the ROC curve (AUC). Higher AUC values suggest a stronger relationship between risk stratification via MRI attributes and ODX.
Table 1Feature classAccuracy (μ±Δ)AUC (μ±Δ)DHoG87.07%±5.66%0.89±0.04DLBP85.86%±7.82%0.83±0.07EK82.36%±8.46%0.80±0.06PK81.14%±7.55%0.78±0.07TK75.93%±6.65%0.76±0.08IK76.43%±7.23%0.75±0.12Shape71.04%±6.81%0.70±0.06
Table 1 illustrates the mean and standard deviation in accuracy and AUC values over 200 runs of randomized cross validation. DHoG, DBLP and EK features yielded the highest classification accuracy and AUC. Although lesion shape has been shown to be important for discriminating benign and malignant lesions on MRI, shape appears to be less useful in distinguishing between ER+ BCa lesions with low and high ODX RS.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P2-02-12.
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Affiliation(s)
- A Madabhushi
- Case Western Reserve University, Cleveland, OH; Boston University School of Medicine, Boston, MA; UH MacDonald Women's Hospital Breast Centers, Cleveland, OH; University Hospitals Case Medical Center, Cleveland, OH; Seidman Cancer Center, Cleveland, OH
| | - T Wan
- Case Western Reserve University, Cleveland, OH; Boston University School of Medicine, Boston, MA; UH MacDonald Women's Hospital Breast Centers, Cleveland, OH; University Hospitals Case Medical Center, Cleveland, OH; Seidman Cancer Center, Cleveland, OH
| | - B Bloch
- Case Western Reserve University, Cleveland, OH; Boston University School of Medicine, Boston, MA; UH MacDonald Women's Hospital Breast Centers, Cleveland, OH; University Hospitals Case Medical Center, Cleveland, OH; Seidman Cancer Center, Cleveland, OH
| | - D Plecha
- Case Western Reserve University, Cleveland, OH; Boston University School of Medicine, Boston, MA; UH MacDonald Women's Hospital Breast Centers, Cleveland, OH; University Hospitals Case Medical Center, Cleveland, OH; Seidman Cancer Center, Cleveland, OH
| | - C Thompson
- Case Western Reserve University, Cleveland, OH; Boston University School of Medicine, Boston, MA; UH MacDonald Women's Hospital Breast Centers, Cleveland, OH; University Hospitals Case Medical Center, Cleveland, OH; Seidman Cancer Center, Cleveland, OH
| | - H Gilmore
- Case Western Reserve University, Cleveland, OH; Boston University School of Medicine, Boston, MA; UH MacDonald Women's Hospital Breast Centers, Cleveland, OH; University Hospitals Case Medical Center, Cleveland, OH; Seidman Cancer Center, Cleveland, OH
| | - N Avril
- Case Western Reserve University, Cleveland, OH; Boston University School of Medicine, Boston, MA; UH MacDonald Women's Hospital Breast Centers, Cleveland, OH; University Hospitals Case Medical Center, Cleveland, OH; Seidman Cancer Center, Cleveland, OH
| | - C Jaffe
- Case Western Reserve University, Cleveland, OH; Boston University School of Medicine, Boston, MA; UH MacDonald Women's Hospital Breast Centers, Cleveland, OH; University Hospitals Case Medical Center, Cleveland, OH; Seidman Cancer Center, Cleveland, OH
| | - L Harris
- Case Western Reserve University, Cleveland, OH; Boston University School of Medicine, Boston, MA; UH MacDonald Women's Hospital Breast Centers, Cleveland, OH; University Hospitals Case Medical Center, Cleveland, OH; Seidman Cancer Center, Cleveland, OH
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Madabhushi A, Basavanhally AN, Doyle S, Wan T, Singanamalli A, Thompson C, Gilmore H, Plecha D, Harris L. Abstract P2-03-01: Computer extracted image texture features on T2-weighted MRI appear to correlate with nuclear morphologic descriptors from H&E-stained histopathology in estrogen receptor positive breast cancers. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p2-03-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Oncotype DX (ODX) is a 21 panel gene-expression based assay for predicting whether patients with estrogen receptor-positive (ER+) breast cancer (BCa) are candidates for adjuvant chemotherapy. However, the time and expense associated with genomic assays suggests the need for a non-invasive, imaging-based, pre-therapeutic tool for assessment of disease risk and selection of an appropriate treatment regimen. The objective of this research was to determine whether (a) computer extracted image features on T2-weighted (T2w) MRI and H&E stained histopathology are independently able to distinguish ER+ BCa with low and high ODX recurrence scores (RS) and (b) to determine whether there is a correlation between MRI and histologic features identified as being predictive of low and high ODX risk categories.
A total of 11 ER+ BCa patients were considered in this study, based on availability of in vivo 1.5 Tesla T2w MRI. For each study, the corresponding formalin-fixed paraffin-embedded H&E stained tissue specimens were digitized at 20x (0.5 μm/pixel) using a whole-slide scanner. Of the 11 patients, 8 were identified in the low ODX (RS < 18) and 3 in the high ODX (RS > 30) risk categories. Each dataset was accompanied by expert annotations of (a) the lesion ROI on MRI and (b) boundaries of epithelial nuclei from a representative field-of-view on the digitized histology slide.
For each MRI study, a multi-scale, multi-orientation Gabor filter bank was convolved with the annotated lesion area providing a set of 192 texture features (FMRI). For each corresponding histology image, 471 features (FHIST) were extracted describing both nuclear morphology (NM) and Laws texture (LT) within the nuclear regions. Independent 2-sample t-tests were used to identify salient features in FMRI and FHIST that are able to distinguish low and high ODX risk categories. We found that, for the MRI dataset, Gabor texture features at several scales and orientations yielded salient features (p < 0.05) while on histopathology, nuclear texture and convexity (shape) features were identified as the top discriminative features (p < 0.01). Relationships between significant features were evaluated via Spearman's rank correlation test (see table), where high correlations were observed between lesion texture on T2w MRI and nuclear texture and shape on histology.
Correlation of histologic and MRI features able to distinguish low and high ODX RSHistologic feature correlated with ODXMRI feature correlated with ODXCorrelation coefficient (ρ)p-valueLT: 70 Mean HSVGF: Scale 2: Orientation 3: min/max-0.85450.0008NM: ConvexityGF: Scale 5: Orientation 6: mean-0.85450.0008LT: 70 Mean HSVGF: Scale 2: Orientation 3: min/max-0.83640.0013LT: 70 Mean HSVGF: Scale 3: Orientation 8: mean-0.83640.0013LT: 70 Mean HSVGF: Scale 3: Orientation 2: mean-0.81820.0021
Our results suggest that quantitative features extracted on both T2w MRI and histopathology can independently distinguish between low and high risk ODX classes. Moreover, some of these MRI and histologic features appear to be significantly correlated, suggesting that information regarding tumor biology is reflected in both MRI and histologic image features.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P2-03-01.
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Affiliation(s)
- A Madabhushi
- Case Western Reserve University, Cleveland, OH; Rutgers, The State University of New Jersey, Piscataway, NJ; Ibris, Inc., Monmouth Junction, NJ
| | - AN Basavanhally
- Case Western Reserve University, Cleveland, OH; Rutgers, The State University of New Jersey, Piscataway, NJ; Ibris, Inc., Monmouth Junction, NJ
| | - S Doyle
- Case Western Reserve University, Cleveland, OH; Rutgers, The State University of New Jersey, Piscataway, NJ; Ibris, Inc., Monmouth Junction, NJ
| | - T Wan
- Case Western Reserve University, Cleveland, OH; Rutgers, The State University of New Jersey, Piscataway, NJ; Ibris, Inc., Monmouth Junction, NJ
| | - A Singanamalli
- Case Western Reserve University, Cleveland, OH; Rutgers, The State University of New Jersey, Piscataway, NJ; Ibris, Inc., Monmouth Junction, NJ
| | - C Thompson
- Case Western Reserve University, Cleveland, OH; Rutgers, The State University of New Jersey, Piscataway, NJ; Ibris, Inc., Monmouth Junction, NJ
| | - H Gilmore
- Case Western Reserve University, Cleveland, OH; Rutgers, The State University of New Jersey, Piscataway, NJ; Ibris, Inc., Monmouth Junction, NJ
| | - D Plecha
- Case Western Reserve University, Cleveland, OH; Rutgers, The State University of New Jersey, Piscataway, NJ; Ibris, Inc., Monmouth Junction, NJ
| | - L Harris
- Case Western Reserve University, Cleveland, OH; Rutgers, The State University of New Jersey, Piscataway, NJ; Ibris, Inc., Monmouth Junction, NJ
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Ross CL, Dimock R, Chotai A, Meeajan R, Wan T, Finney L, Elkin SL. P70 Management of pleural effusions: Are healthcare professionals adequately trained? Thorax 2013. [DOI: 10.1136/thoraxjnl-2013-204457.220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Finney LJ, Beasley V, Wan T, Cahill H, Berry M. P109 Do specialist non-CF bronchiectasis clinics improve quality of care? Thorax 2013. [DOI: 10.1136/thoraxjnl-2013-204457.259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Lam CT, Yang ZF, Ng MN, Wan T, Lau J, Ho DW, Fan ST, Poon RT. Abstract 3862: The potential role of CD44 in liver regeneration. Cancer Res 2012. [DOI: 10.1158/1538-7445.am2012-3862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background and Aim: Liver regeneration occurs after liver damage by ischaemia, hepatitis, or in hepatocellular carcinoma (HCC) patients receiving hepatic resection or liver transplantation. Understanding the molecular bases of this process will provide novel therapeutic approaches for patients with various liver diseases. Previous studies suggested the linkage between CD44, a multifunctional cell surface receptor, and liver regeneration. The detailed role of this receptor in liver regeneration, however, remained unclear. The present study aimed at elucidating the role of CD44 in liver regeneration. Materials and Methods: A mouse model of liver regeneration induced by partial hepatectomy (PH) was employed. Serum and liver tissues were collected at different time points after PH. ELISA was performed to measure hyaluronic acid (ligand for CD44) level in serum. Flow cytometry was done to characterize liver cell populations after PH. Liver regeneration was quantified by measurement of liver mass and by immunohistochemical staining for PCNA (a proliferation marker). Quantitative PCR was performed to compare gene expression pattern of 46 genes between CD45− CD44+ cells and their CD44− counterparts. Results: Firstly, serum hyaluronic acid level was elevated at the early stage of liver regeneration. Secondly, by flow cytometry, an increase in CD45− CD44+ cell population was found. Thirdly, immunohistochemical analysis revealed active hepatocyte proliferation during this period. Interestingly, the hepatectomy-induced cell proliferation was suppressed after treating mice with anti-CD44 antibody, suggesting a functional role of CD44 in liver regeneration. Lastly, dysregulation of genes involving in cell proliferation, angiogenesis, and metabolism of hyaluronic acid was disclosed in CD45− CD44+ cells. Conclusion: The present study indicated that CD44-mediated pathways are required for liver regeneration, which may have therapeutic implications in treating liver diseases, including HCC.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 103rd Annual Meeting of the American Association for Cancer Research; 2012 Mar 31-Apr 4; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2012;72(8 Suppl):Abstract nr 3862. doi:1538-7445.AM2012-3862
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Affiliation(s)
- CT Lam
- 1Univ. of Hong Kong, Hong Kong, Hong Kong
| | - ZF Yang
- 1Univ. of Hong Kong, Hong Kong, Hong Kong
| | - MN Ng
- 1Univ. of Hong Kong, Hong Kong, Hong Kong
| | - T Wan
- 1Univ. of Hong Kong, Hong Kong, Hong Kong
| | - J Lau
- 1Univ. of Hong Kong, Hong Kong, Hong Kong
| | - DW Ho
- 1Univ. of Hong Kong, Hong Kong, Hong Kong
| | - ST Fan
- 1Univ. of Hong Kong, Hong Kong, Hong Kong
| | - RT Poon
- 1Univ. of Hong Kong, Hong Kong, Hong Kong
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Huang H, Liu J, Li Y, Wan T, Feng Y, Li Z, Huang Q. Metastasis to deep obturator and para-aortic lymph nodes in 649 patients with cervical carcinoma. Eur J Surg Oncol 2011; 37:978-83. [DOI: 10.1016/j.ejso.2011.08.128] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2011] [Revised: 06/25/2011] [Accepted: 08/22/2011] [Indexed: 10/17/2022] Open
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Al-Lamki RS, Brookes AP, Wang J, Reid MJ, Parameshwar J, Goddard MJ, Tellides G, Wan T, Min W, Pober JS, Bradley JR. TNF receptors differentially signal and are differentially expressed and regulated in the human heart. Am J Transplant 2009; 9:2679-96. [PMID: 19788501 PMCID: PMC3517885 DOI: 10.1111/j.1600-6143.2009.02831.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Tumor necrosis factor (TNF) utilizes two receptors, TNFR1 and 2, to initiate target cell responses. We assessed expression of TNF, TNFRs and downstream kinases in cardiac allografts, and compared TNF responses in heart organ cultures from wild-type ((WT)C57BL/6), TNFR1-knockout ((KO)), TNFR2(KO), TNFR1/2(KO) mice. In nonrejecting human heart TNFR1 was strongly expressed coincidentally with inactive apoptosis signal-regulating kinase-1 (ASK1) in cardiomyocytes (CM) and vascular endothelial cells (VEC). TNFR2 was expressed only in VEC. Low levels of TNF localized to microvessels. Rejecting cardiac allografts showed increased TNF in microvessels, diminished TNFR1, activation of ASK1, upregulated TNFR2 co-expressed with activated endothelial/epithelial tyrosine kinase (Etk), increased apoptosis and cell cycle entry in CM. Neither TNFR was expressed significantly by cardiac fibroblasts. In (WT)C57BL/6 myocardium, TNF activated both ASK1 and Etk, and increased both apoptosis and cell cycle entry. TNF-treated TNFR1(KO) myocardium showed little ASK1 activation and apoptosis but increased Etk activation and cell cycle entry, while TNFR2(KO) myocardium showed little Etk activation and cell cycle entry but increased ASK1 activation and apoptosis. These observations demonstrate independent regulation and differential functions of TNFRs in myocardium, consistent with TNFR1-mediated cell death and TNFR2-mediated repair.
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Affiliation(s)
- RS Al-Lamki
- Department of Medicine, University of Cambridge, Addenbrooke’s Hospital, Cambridge
| | - AP Brookes
- Department of Medicine, University of Cambridge, Addenbrooke’s Hospital, Cambridge
| | - Jun Wang
- Department of Medicine, University of Cambridge, Addenbrooke’s Hospital, Cambridge
| | - MJ Reid
- Department of Medicine, University of Cambridge, Addenbrooke’s Hospital, Cambridge
| | - J Parameshwar
- Department of Transplantation, Papworth Hospital, Papworth Everard, Cambridge, UK
| | - MJ Goddard
- Department of Pathology, Papworth Hospital, Papworth Everard, Cambridge, UK
| | - G Tellides
- Department of Surgery, Yale University School of Medicine, New Haven, Connecticut, USA
| | - T Wan
- Department of Pathology, Yale University School of Medicine, New Haven, Connecticut, USA
| | - W Min
- Department of Pathology, Yale University School of Medicine, New Haven, Connecticut, USA
| | - JS Pober
- Department of Immunobiology, Yale University School of Medicine, New Haven, Connecticut, USA
| | - JR Bradley
- Department of Medicine, University of Cambridge, Addenbrooke’s Hospital, Cambridge
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McClung C, Schroeder K, Wan T, Henderson S. 46. Ann Emerg Med 2006. [DOI: 10.1016/j.annemergmed.2006.07.494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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